A process described by PCB $2$ executes the operation create$($m$,$ n$,$ o$,$ p$)$

The process is allocated to a new PCB $4.$ A context switch takes place and the new child process executes the operation create$($i$,$ j$,$ k$,$ l$)$

The process is allocated to a new PCB $7.$

Complete all fields in the following diagram resulting from the creation. For empty or undefined fields, enter: NULL

$...2...4...7$